Brick-mold sander



(No Model.) 4 SheetsSheet 1.

G; (DARNELL.

BRICK MOLD SANDER.

No. 472,334. Patented Apr. 5. 1892.

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4 Sheets-Sheet 2.-

(No'ModeL) G. OARNELL.

k BRICK MOLD SANDER.

.No. 472,334. Patented Apr. 5, 1892.

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(No Model.) 4 Sheets-Sheet 3.

G. GARNELL.

BRIGK MOLD SANDER. No. 472,334. Patented Apr. 5, 1892.

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(No Model.) 4 Sheets-Sheet 4.

G. CARNELL.

'BRIOK MOLD SANDER.

No. 472,334. Patented Apr. 5, 1892.

. view. Fig. 5 is a side elevation showing the UNITED STATES PATENTFFICE.

GEORGE CARNELL, OF PHILADELPHIA, PENNSYLVANIA.

BRICK-MOLD SANDER.

SPEGIFICA'IIQN forming part of Letters Patent No. 472,334, dated April5, 1892.

Application filed May 19, 1891. Serial No. 393,369. (No model.)

To all whom it may concern:

Be it known that I, GEORGE OARNELL, a citizen of the United States ofAmerica, residing at Philadelphia, in the county of Philadelphia andState of Pennsylvania, have invented certain new and useful Improvementsin Machines for Sanding MoldBoxes, of which the following is aspecification.

The object of my invention is to provide for sanding of molds used inthe manufacture of brick, and I aim to provide such a construction ofapparatus for this purpose as will enable me to perform the workautomatically to a large extent.

My invention includes a hopper which is vertically movable, so as toallow for the passage beneath it of molds of varying heights, the saidmolds being placed in rear of said hopper with means for pushing themunder the hopper and out at the other side, the molds then being raisedautomatically and the sand contained therein dumped into the hopper.

In the accompanying drawings, Figure 1 represents a side elevation of myimproved machine. Fig. 2 is a rear view. Fig. 3 is a section on line x00 of Fig. 2. Fig. 4 is a plan mechanism forraising and dumping themolds, and Fig. 6 isaplan view of Fig. 5. Figs. 7 and 8 show the partsfor elevating and dumping the molds.

In the figures ordinary frame-work supporting the working parts is shownat A. This frame-work supports a hopper B, which extends across from oneside to the other, being supported at each end by brackets bolted to theframe-work, as at a. These brackets have slotted upper ends, whichreceive projections 12, extending from the ends of the hopper, and asthe slots in the brackets are open at the top the hopper may be movedupward to increase the space between the plane of its lower edge and thesurface of the frame-work when molds of different heights are used inconnection therewith.

As shown in Fig. 3, the molds are adapted to be piled one upon anotherin rear of the hopper, being held in proper position by means of theuprights 0, one being provided at each end and two at the rear. Theboxes are placed in rear of the hopper empty, and are then moved insuccession under the hopper, being filled with sand in the passage, andin order to thus move them I provide in rear of. the position of theempty molds between the rear uprights a shaft 01, carrying a roller c.This shaft is secured by means of bolts and nuts to arms ff, extendingfrom a rotating shaft g, which is provided with a band-wheel and adriving-gear. The shaft cl is secured to its supporting-arms at an anglethereto, as shown in Fig. 1, and in the rotation of the main shaft thebox which is at the bottom of the empty set is moved along beneath thehopper, moving the one before it out from under the hopper, as shown inFig. 5. After the box which is filled with sand passes to the front ofthe hopper and from beneath it, it must be elevated and its contentsdumped, leaving it in proper sanded condition. I provide for thisoperation in a very simple manner. A supportingarm is secured to eachone of the brackets at the end of the table, which serves to support thehopper, and from these supporting-arms a shaft 2' extends, this shaftcarrying a bellcrank lever It at one end having a long and a short armand at the other end simplya long arm. The long arm of each lever isprovided with a plate m, which engages the mold-box at each end, thelong arms of the levers being in the position shown in dotted lines whenthe filled box is pushed out from beneath the hopper. As the short armof the lever has a pitman connection to the crank-shaft Z the rotarymovement of said shaft has the effect to lift the long arms of the leverto the position shown in full lines in Fig. 5, and with them themold-box, and in the further movement of the crank-shaft the short armsare drawn down, the long arms still further lifted, and the boxes aredumped by means ofa rod 19, extending between studs on the shaft 91 andthe supports for the boxes. These supports are, as shown in Figs. 7 and8, yokes 0, having a projecting bearing at the rear, which are held inboxes on the end of the long arms, being prevented from displacement bycollars n, held in place by set-screws. Rods p extend between the studson the shaft '11 and studs on these yokes, and as the yokes haveswiveling movement they are thus easily tilted. The plates on are hingedto the yokes, as shown in Fig. 8, being adapted to move upward in orderto pass below the ends of the boxes in the position shown in dottedlines in Fig. 5, until they get below the line of the recess (1 of thebox, when they assume a horizontal. position, and in the liftingmovement they are adapted to sustain the weight of the box by means of ashoulder 0', which comes in contact, as in Fig. 8, with the rear wall ofthe yokes.

I claim as my invention 1. In combination, the hopper, the means forforcing the molds beneath the same, the swiveled plates for engaging themolds, the vertically movable supports carrying said plates, and meansfor turning said plates While elevated for dumping the boxes,substantially as described.

2. In combination, the hopper, the means for moving the mold-boxesunderthe hopper, the levers for raising the boxes, the supports swiveledin the ends of the levers, the plates m for engaging the boxes pivotedto the swiveled supports, and means for operating the levers and theswiveled supports, substantially as described.

3. In combination, the hopper, the moldboxes having recesses in theirsides, the means for moving the mold-boxes under the same, the swiveledplates adapted to the recesses in the molds, the elevating-supports forthe plates, with operating means for said supports, and means forturning the plates to dump the molds, substantially as described.

4. In combination, the hopper, means for moving the boxes under thesame, the moldboxes, the elevating-levers, with means for raising andlowering them, and the pivoted gravity-plates at the ends of the leversfor engaging the boxes, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE CARNELL. Witnesses:

F. L. MIDDLETON, J. M. SPEAR.

